Finding the Third Proportional to 17,770 and 27,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,770 : 27,515.50 = 27,515.50 : x
2. Step 2: Convert to fraction form
   17,770/27,515.50 = 27,515.50/x
3. Step 3: Cross multiply
   17,770x = 27,515.50 × 27,515.50
4. Step 4: Simplify right side
   17,770x = 757,102,740.25
5. Step 5: Solve for x
   x = 757,102,740.25/17,770
6. Step 6: Final answer
   x = 42,605.67